Gumshoes: The Case of Madison's Father - Gumshoes, #1

GUMSHOES is about a detective agency run by two middle school kids who are top tier detectives and genius level scientists. It's basically CSI for kids!In the first book of the series, the Gumshoes join forces with one of their classmates to unravel the mystery of her father's kidnapping. Through a combination of good investigating, hard science, and blind dumb luck, the trio inch their way closer and closer to the truth. But will it be enough to track down her father before something happens to him?